/Engine/Source/Runtime/GeometryCore/Public/CompGeom/ExactPredicates.h
TVector-only version that can run in float or double
value w/ sign indicating whether triangle ABC is facing Direction, or 0 if it is parallel to Direction
namespace UE { namespace Geometry { namespace ExactPredicates { template<typename RealType> RealType UE::Geometry::ExactPredicates::Facing3 ( const [TVector](API\Runtime\Core\Math\TVector)< RealType > & A, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & B, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & C, const [TVector](API\Runtime\Core\Math\TVector)< RealType > & Direction ) } } }